16
English
8 Establishing a Transmission Path
1) Adjust the radio frequency on the receiver
Make sure that the corresponding transmitter
is switched off If the RF bar graph indicates
radio reception, interference or signals from
other wireless transmitters are being received
In this case, set the receiver to a different radio
frequency
2) Switch on the transmitter and set the trans-
mitter to the radio frequency* of the receiver
The RF bar graph will indicate the strength of
the radio signal
(For information with regard to the other in-
dications on the display, please refer to the
overview in chapter 1 )
3) Speak / Sing into the microphone of the trans-
mitter or, in case of an instrument microphone,
play the instrument The AF bar graph will
indicate the volume level of the transmitter
If the volume is too high or too low, readjust
the audio sensitivity* of the transmitter ac-
cordingly For a pocket transmitter, the 20 dB
attenuation* can additionally be activated
Adjust the volume (
☞
chapter 6) to match
the output level of the receiver to the subse-
quent audio unit
If no signal is received or if reception is poor,
please check the following items:
– Are the batteries of the transmitter discharged?
The display indicates the battery status of the
transmitter:
☞
chapter 1
– Is the reception disturbed by objects in the
transmission path?
Make sure to keep the transmitter and the
receiver at a distance of 50 cm from metal
objects and any other sources of interference
(e g electric motors or fluorescent lamps)
– Is the reception improved when the receiving
antennas (1) are moved?
– Is the transmission power* of the transmitter
too low?
– Is the squelch value too high?
8.1 Function
(synchronizing receiver and transmitter)
The function
allows you to transfer
settings from the receiver to the transmitter via
ultrasound The settings transferred depend on
how the function has been configured in the
menu (
☞
chapter 5 2 5)
Note:
On the two transmitters RU-850LTB / 5 and
RU-850LTH / 5, the settings can also be made via con-
trol buttons
Switch on the transmitter and place it at a dis-
tance of 20 – 80 cm (optimum distance: 30 cm)
from the receiver in such a way that the ultrasonic
sensor of the transmitter is vertical (±30°) to the
ultrasonic transmitter section
(2) When using
a hand-held microphone, screw off the sleeve of
the microphone until the ultrasonic sensor is not
covered any more Also see fig 4 below
To start the transmission, press the button
(3) The luminous ring of the button
will flash rapidly while the settings are being
transferred Once the transmission has been com-
pleted, the ring will light continuously again If the
ring changes from rapid flashing to slow flashing,
the transmission has failed (To terminate flashing
after a failed transmission, briefly press one of the
other buttons)
20
–
80
cm
−30° +30°
➃
* Transfer to the transmitter via ultrasound (
☞
chap-
ter 8.1) or, if this option is provided by the transmitter,
set directly on the transmitter
